fix(protocol-designer): revert changes to source_well / dest_well constants (#2931)
fix(protocol-designer): revert changes to source_well / dest_well constants (#2931)

this created an unintended breaking change for PD files in application-data, for no good reason!
OpenTrons/opentrons-api,Opentrons/labware,OpenTrons/opentrons-api,OpenTrons/opentrons-api,OpenTrons/opentrons_sdk,OpenTrons/opentrons-api,OpenTrons/opentrons-api